Why is gpt-6-astra being routed to gpt-5.6-luna? How do we get the requested model back?

· Community Openai · Sept. 21, 2026, 3:53 a.m.
Summary
This blog post raises concerns about a consistent mismatch between requested AI models (gpt-6-astra) and the actual model received (gpt-5.6-luna) from OpenAI's API. The author seeks clarification on why this mismatch occurs, whether it is a known issue, and how account settings may be influencing the behavior. They inquire about billing implications and ways to reliably detect model discrepancies in production environments.
AUTHOR